Headache is the most common symptom. Headache can be caused by cold, fever, exertion or even lack of sleep. In general, headaches tend to come regardless of the time of day. However, there is one type of headache that is somewhat exceptional, and its occurrence can be regular. If patients often feel headache in the afternoon, they should be cautious because it may be caused by elevated blood pressure. The human blood pressure has certain characteristics, early in the morning and the morning is relatively smooth, generally lower than the afternoon blood pressure. In the afternoon, the blood pressure is significantly higher than in the morning at this time due to fatigue and more mental activity. With the rise in blood pressure, a series of symptoms such as headache and dizziness can occur. If patients often have unexplained headaches in the afternoon, then they should go to the hospital to have their blood pressure tested in time to facilitate early detection and early treatment of hypertension. Therefore, some patients are advised not to take painkillers as soon as the headache appears, but also to consider what exactly causes the headache, record the pattern and time of occurrence of the headache, and inform the attending doctor in detail during the visit. In addition, it is a good idea to monitor blood pressure at home if you have this unexplained headache in the afternoon. Especially for people at risk of obesity, smoking, and genetic factors, once hypertension is diagnosed, it should be treated with antihypertensive medication in a timely manner. If you happen to be in critical hypertension, timely treatment can get rid of the lifelong medication problem. If patients with diagnosed hypertension often have headaches in the afternoon, they should consider the problem of mental stress and lifestyle habits, and make the habit of taking a nap or adjusting their antihypertensive medication to better control their blood pressure and avoid headaches induced by blood pressure fluctuations. What should I do if my blood pressure rises suddenly? The sudden onset of emergency hypertension is roughly of two kinds: one is due to some kind of secondary hypertension, such as suffering from acute glomerulonephritis, or a sudden attack of pheochromocytoma, causing a sudden rise in blood pressure, which can reach more than 200/140 mmHg, accompanied by severe headache, nausea, vomiting, profuse sweating, rapid heartbeat, and pallor. The illness comes on very aggressively, and this condition occurs mostly in people who are relatively young. Another condition is that the original history of hypertension, blood pressure on the original basis of a sudden increase in blood pressure, the occurrence of this condition often have excessive mental tension, excessive emotional excitement, or stop taking antihypertensive drugs, there are also a few cases of unexplained blood pressure rise occurred. It may be accompanied by headache, vomiting, blurred vision, panic and chest tightness, or even impaired consciousness. This sudden rise in blood pressure can also occur repeatedly. As a family member or colleague, when you encounter such an unexpected event, remember not to panic and do temporary treatment first while contacting the hospital for treatment. First of all, stabilize the patient, make him lie down with his head slightly elevated, and immediately give oral or sublingual antihypertensive drugs with fast onset, such as nifedipine, captopril and other drugs. In emergency situations, it is not necessary to be constrained by the choice of drugs, and the appropriate antihypertensive drug can be taken when identified. For patients who are sober, ask about the current treatment. If you have never taken drugs, you can give a small dose of antihypertensive drugs first, and then measure the blood pressure after ten minutes, and if the blood pressure does not decrease, increase the dose again; if you meet a hypertensive patient who is taking drugs, you do not have to reduce the dose, but directly take an oral antihypertensive drug, and then observe the blood pressure, and at this time, you can control the blood pressure at 160/100 mmHg is a safe range. For patients with sudden increase in blood pressure, after the blood pressure is stabilized, the cause must be identified and actively treated to prevent recurrence. In addition, there is a kind of neurogenic hypertension, in which the blood pressure will rise when encountering mental stimulation or emotional excitement, or accompanied by convulsions and headaches. If this is the case, we should pay attention to the regulation of emotions, peace of mind, rest or use some sedative drugs if necessary.